Experience of high-nitrogenous steel powder application in repairs and surface hardening of responsible parts for power equipment by plasma spraying

The coating produced by electron beam overlay welding of a nitrogen alloyed austenitic steel (24.40Cr, 16.40Mn, 0.18Ni, 1.1Si, 0.57C, 0.70N, and bal Fe (in wt.%)) is investigated. Electron beam overlay welding is performed by a continuous low-energy (27 keV), low-current (0.02–0.04 A) focused electron beam using electron beam setup (ISPMS SB RAS, Russia) with a residual pressure of 0.1 Pa. This paper examines microstructure, phase composition, chemical composition of the coating by OM/AES/XRD/SEM/EDS methods. The obtained coating is pore-free and exhibits high work hardening characteristics. Friction loads induce the γ;→α′ transformation in the wear process. With increasing friction loads, the friction coefficient decreases.

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Experience of high-nitrogenous steel powder application in repairs and surface hardening of responsible parts for power equipment by plasma spraying

Cited by 4 publications

References 2 publications

Development of an Automatic Locomotive Traction Drive Control System to Reduce the Amount of Wheel Slippage on the Rail

Development of an Automatic Locomotive Traction Drive Control System to Reduce the Amount of Wheel Slippage on the Rail

Non-destructive Method of Controlling the Depth of Tempering of Parts of the Mechanical Part of Locomotives

Structure and wear resistance of Fe-Cr-Mn-C-N coating obtained by electron beam overlay welding

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